The unusual coincidence is that this case was dismissed only a couple of days before Grosskreutz gave his testimony in the Rittenhouse case on October 28, 2021.  See case data below:

Along with the above charge, another charge for refusing to take a blood-alcohol test was also dismissed on October 28, 2021.  Again, this was only a couple of days before Grosskreutz testified in the Rittenhouse case.

Here is some more on these dismissals.

https://www.thegatewaypundit.com/2021/11/breaking-exclusive-potential-witness-tampering-gaige-grosskreutz-felon-aimed-gun-kyle-rittenhouse-two-prior-charges-dismissed-prosecutors-days-trial/

https://t.me/gatewaypunditofficial/8018